Although external validity is a desirable quality in an experiment, it is often attained at the expense of
a. generalizability.
b. random selection.
c. applicability.
d. internal validity.
D
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In its drive for rapid economic growth, Beijing had smog levels in early 2013 that were far above levels considered dangerous, and its citizens who went outside experienced burning lungs and stinging eyes. This illustrates the debate over __________.
A. sustainable development B. the ozone layer C. collective goods D. the UN Environment Program
In a speech in November 2002, former chair of the Federal Reserve Board Ben Bernanke suggested the possibility that, in an extreme economic crisis, the Federal Reserve (working in coordination with the U.S. government), could ______.
a. print and loan enough money to finance a massive tax cut and economic stimulus b. force businesses to increase spending in order to jump-start the economy c. lower the unemployment rate through offering federal projects and job programs d. lower the rate of inflation by selling stocks and bonds on the open market
What is the difference between an antecedent variable and an intervening variable? Draw a model to represent each variable in relationship to the dependent and independent variables.
What will be an ideal response?
A researcher is interested in studying anxiety levels in psychology majors compared to management majors. He thinks that there is a greater incidence of anxiety in psychology majors. The null hypothesis would be that the incidence of anxiety is
A) Inversely proportional to the number of students in each major. B) The same for both majors. C) Greater among psychology majors. D) Greater among management majors.